<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input
        v-model="listQuery.goodsId"
        clearable
        size="mini"
        class="filter-item"
        style="width: 200px"
        placeholder="请输入商品编号"
      />
      <el-button
        v-permission="['GET /merchant/seckill/list']"
        size="mini"
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
        >查找
      </el-button>
      <el-button
        v-permission="['POST /merchant/seckill/create']"
        size="mini"
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
        >添加
      </el-button>
      <el-button
        :loading="downloadLoading"
        size="mini"
        class="filter-item"
        type="warning"
        icon="el-icon-download"
        @click="handleDownload"
        >导出
      </el-button>
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      size="small"
      element-loading-text="正在查询中。。。"
      border
      fit
      highlight-current-row
    >
      <el-table-column
        align="center"
        min-width="60px"
        label="商品ID"
        prop="goodsId"
      />

      <el-table-column
        align="center"
        min-width="200"
        label="名称"
        prop="goodsName"
      />

      <el-table-column align="center" property="picUrl" label="图片">
        <template slot-scope="scope">
          <img :src="scope.row.picUrl" width="40" />
        </template>
      </el-table-column>

      <el-table-column
        align="center"
        min-width="80px"
        label="秒杀批次"
        prop="time"
      />

      <el-table-column
        align="center"
        min-width="60px"
        label="总数"
        prop="totalNumber"
      />

      <el-table-column
        align="center"
        min-width="60px"
        label="剩余数"
        prop="leftNumber"
      />

      <el-table-column
        align="center"
        min-width="80px"
        label="是否结束"
        prop="finishTime"
      >
        <template slot-scope="scope">
          <el-tag :type="scope.row.finishTime == null ? 'success' : 'danger'">
            {{ scope.row.finishTime == null ? "否" : "结束" }}
          </el-tag>
        </template>
      </el-table-column>

      <el-table-column
        align="center"
        min-width="80px"
        label="开始时间"
        prop="startDay"
      />

      <el-table-column
        align="center"
        min-width="80px"
        label="结束时间"
        prop="endDay"
      />

      <el-table-column
        align="left"
        min-width="200px"
        label="操作"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            v-if="scope.row.finishTime == null"
            v-permission="['POST /merchant/seckill/update']"
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)"
            >编辑
          </el-button>
          <el-button
            v-if="scope.row.finishTime == null"
            v-permission="['POST /merchant/seckill/update']"
            type="primary"
            size="mini"
            @click="handleFinishGood(scope.row)"
            >结束
          </el-button>
          <el-button
            v-permission="['POST /merchant/seckill/delete']"
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)"
            >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改对话框 -->
    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form
        ref="dataForm"
        :rules="rules"
        :model="dataForm"
        status-icon
        label-position="left"
        label-width="150px"
        style="width: 500px; margin-left: 50px"
      >
        <el-form-item label="商品ID" prop="goodsId">
          <el-select
            v-model="dataForm.goodsId"
            v-el-select-loadmore="loadmore"
            filterable
            placeholder="请选择商品"
          >
            <el-option
              v-for="item in options"
              :key="item.name"
              :label="item.name"
              :value="item.id"
            >
              <span>{{ item.name }}</span>
              <img :src="item.picUrl" style="height: 32px; float: right" />
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="秒杀金额" prop="price">
          <el-input v-model="dataForm.price" placeholder="请输入秒杀金额" />
        </el-form-item>
        <el-form-item label="秒杀数量" prop="discountMember">
          <el-input
            v-model="dataForm.discountMember"
            placeholder="请输入秒杀数量"
          />
        </el-form-item>
        <el-form-item label="秒杀进行日期" prop="startTime">
          <el-date-picker
            v-model="dataForm.startTime"
            type="datetime"
            placeholder="选择日期"
            value-format="yyyy-MM-dd HH:mm:ss"
          />
        </el-form-item>
        <el-form-item label="秒杀批次" prop="configId">
          <el-select
            v-model="dataForm.configId"
            placeholder="请选择批次"
            @change="handleChange"
          >
            <el-option
              v-for="item in batchList"
              :key="item.time"
              :label="item.time"
              :value="item.id"
            />
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button
          v-if="dialogStatus == 'create'"
          type="primary"
          @click="createData"
          >确定
        </el-button>
        <el-button v-else type="primary" @click="updateData">确定</el-button>
      </div>
    </el-dialog>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="listQuery.page"
      :limit.sync="listQuery.limit"
      @pagination="getList"
    />

    <el-tooltip placement="top" content="返回顶部">
      <back-to-top :visibility-height="100" />
    </el-tooltip>
  </div>
</template>

<script>
import {
  deleteSeckill,
  finishSeckill,
  getBatchConfig,
  listGoods,
  listSeckill,
  publishSeckill,
  updateSeckill,
} from "@/api/business/seckill";
import BackToTop from "@/components/BackToTop";
import Pagination from "@/components/Pagination"; // Secondary package based on el-pagination
import { isInteger, notIntOrDecimal } from "@/utils/validate";
import { MessageBox } from "element-ui";

export default {
  name: "GrouponRule",
  components: { BackToTop, Pagination },
  directives: {
    "el-select-loadmore": {
      bind(el, binding) {
        // 获取element-ui定义好的scroll盒子
        const SELECTWRAP_DOM = el.querySelector(
          ".el-select-dropdown .el-select-dropdown__wrap"
        );
        SELECTWRAP_DOM.addEventListener("scroll", function () {
          const condition =
            this.scrollHeight - this.scrollTop <= this.clientHeight;
          if (condition) {
            binding.value();
          }
        });
      },
    },
  },
  data() {
    return {
      pickerOptions0: {
        disabledDate(time) {
          return time.getTime() < Date.now() - 8.64e7;
        },
      },
      batchList: [],
      total: 0,
      list: [],
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        goodsId: undefined,
        sort: "add_time",
        order: "desc",
      },
      downloadLoading: false,
      dataForm: {
        id: undefined,
        goodsId: "",
        price: "",
        discountMember: "",
        startTime: undefined,
        endTime: undefined,
        addTime: undefined,
        updateTime: undefined,
        configId: "",
        configTime: "",
      },
      dialogFormVisible: false,
      dialogStatus: "",
      textMap: {
        update: "编辑",
        create: "创建",
      },
      rules: {
        goodsId: [{ required: true, message: "商品不能为空", trigger: "blur" }],
        price: [
          { required: true, message: "秒杀金额不能为空", trigger: "blur" },
          { validator: notIntOrDecimal, trigger: "blur" },
        ],
        discountMember: [
          { required: true, message: "秒杀货品数不能为空", trigger: "blur" },
          { validator: isInteger, trigger: "blur" },
        ],
        startTime: [
          { required: true, message: "开始时间不能为空", trigger: "blur" },
        ],
        configId: [
          { required: true, message: "秒杀批次不能为空", trigger: "blur" },
        ],
      },
      value: "",
      options: [],
      formData: {
        pageIndex: 1,
        pageSize: 20,
      },
    };
  },
  created() {
    this.getList();
    this.init();
  },
  mounted() {
    this.getGoodList(this.formData);
  },
  methods: {
    handleChange(val) {
      var obj = {};
      obj = this.batchList.find(function (item) {
        return item.id === val;
      });
      // obj 就是被选中的那个对象，也就能拿到label值了。
      console.log(obj.time); // label值
      this.dataForm.configTime = obj.time;
      console.log(val); // value值
    },
    init() {
      getBatchConfig().then((response) => {
        this.batchList = response.data.data.batchList;
      });
    },
    getList() {
      this.listLoading = true;
      listSeckill(this.listQuery)
        .then((response) => {
          this.list = response.data.data.items;
          this.total = response.data.data.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.list = [];
          this.total = 0;
          this.listLoading = false;
        });
    },
    handleFilter() {
      this.listQuery.page = 1;
      this.getList();
    },
    resetForm() {
      this.dataForm = {
        id: undefined,
        goodsId: "",
        price: "",
        discountMember: "",
        startTime: undefined,
        endTime: undefined,
        addTime: undefined,
        updateTime: undefined,
        configId: "",
      };
    },
    handleCreate() {
      this.$router.push({ path: "/promotion/seckillCreate" });
    },
    createData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          publishSeckill(this.dataForm)
            .then((response) => {
              this.list.unshift(response.data.data);
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "创建秒杀规则成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleUpdate(row) {
      this.$router.push({
        path: "/promotion/seckillEdit",
        query: { id: row.id },
      });
    },
    handleFinishGood(row) {
      this.dataForm = Object.assign({}, row);
      this.$confirm("该货品秒杀活动将结束, 是否继续?", "注意", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          for (const v of this.list) {
            row.leftNumber = 0;
            this.dataForm = Object.assign({}, row);
            if (v.id === this.dataForm.id) {
              const index = this.list.indexOf(v);
              this.list.splice(index, 1, this.dataForm);
              break;
            }
          }
          const finalGoods = {
            id: this.dataForm.id,
            goodsId: this.dataForm.goodsId,
          };
          finishSeckill(finalGoods)
            .then((response) => {
              this.$message({
                type: "success",
                message: "结束成功!",
              });
              this.getList();
            })
            .catch((response) => {
              MessageBox.alert("业务错误：" + response.data.errmsg, "警告", {
                confirmButtonText: "确定",
                type: "error",
              });
            });
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消结束",
          });
        });
    },
    updateData() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          updateSeckill(this.dataForm)
            .then(() => {
              for (const v of this.list) {
                if (v.id === this.dataForm.id) {
                  const index = this.list.indexOf(v);
                  this.list.splice(index, 1, this.dataForm);
                  break;
                }
              }
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "更新秒杀规则成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    handleDelete(row) {
      deleteSeckill(row)
        .then((response) => {
          this.$notify.success({
            title: "成功",
            message: "删除秒杀规则成功",
          });
          const index = this.list.indexOf(row);
          this.list.splice(index, 1);
        })
        .catch((response) => {
          this.$notify.error({
            title: "失败",
            message: response.data.errmsg,
          });
        });
    },
    handleDownload() {
      this.downloadLoading = true;
      import("@/vendor/Export2Excel").then((excel) => {
        const tHeader = [
          "商品ID",
          "名称",
          "首页主图",
          "折扣",
          "人数要求",
          "活动开始时间",
          "活动结束时间",
        ];
        const filterVal = [
          "id",
          "name",
          "pic_url",
          "discount",
          "discountMember",
          "addTime",
          "expireTime",
        ];
        excel.export_json_to_excel2(tHeader, this.list, filterVal, "商品信息");
        this.downloadLoading = false;
      });
    },
    loadmore() {
      this.formData.pageIndex++;
      this.getGoodList(this.formData);
    },
    getGoodList(formData) {
      this.listLoading = true;
      listGoods(formData)
        .then((response) => {
          const _res = response.data.data.items;
          this.options = [...this.options, ..._res];
          this.listLoading = false;
        })
        .catch(() => {
          this.total = 0;
          this.listLoading = false;
        });
      // 这里是接口请求数据, 带分页条件
    },
  },
};
</script>
